1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Hunter-Best [27]
2 years ago
15

How many grams are in 6.8L of Oxygen gas (O2) at STP

Chemistry
1 answer:
zubka84 [21]2 years ago
4 0

Answer:

9.7 g

Explanation:

From the question,

Note: The molar volume of all gas at stp is 22.4 dm³ or 22.4 L

1 mol of  oxygen gas (O₂) at stp = 22.4 dm³

X mole of oxygen gas (O₂) at stp = 6.8 L

X = (1 mol×6.8 L)/22.4 L

X = 0.3036 mol.

But,

Number of mole (n) = mass (m)/molar mass (m')

n = m/m'

m = n×m'.................. Equation 2

Where n = 0.3036 mol, m' = 32 g/mol

Substitute into equation 2

m = 0.3036×32

m = 9.7 g

You might be interested in
Hydrocarbons are compounds that are composed of carbon and hydrogen. Which statement does the law of definite proportions suppor
lora16 [44]
The correct option is A.
The law of definite proportion states that a given chemical compound always contains its component elements in fixed ratio irrespective of the source they are obtain from.
For instance, water is made up of two atoms of hydrogen and one atom of oxygen. Water can not be formed in any other way. Combining the oxygen and the hydrogen in another ratio will give us another thing not water.
6 0
3 years ago
Which statements describe or apply the principal of conservation of energy? Select all that apply.
laila [671]

Answer:

A, C, and D

Explanation:

The correct options that apply to the principal conservation of energy are A, C, and D.

A is correct because energy can neither be created nor destroyed. However, energy can be transfered from one location to another or be converted from one form to another. <em>Whether transferred to converted, the magnitude remains the same.</em>

C is correct because energy cannot be destroyed but can be transferred or converted. <em>Hence, if a body or a location loses temprature, then the loss is being gained by another body or location.</em>

D is also correct. A closed system is a system that does not exchange matter with its surroundings. <em>Hence, the total energy remains the same within the system. </em>

7 0
3 years ago
Read 2 more answers
In the reaction 2H2O (l) + 2Cl– (aq) → H2 (g) + Cl2 (g) + 2OH– (aq), which substance is oxidized?
pashok25 [27]

F. None of the above [Cl^(-) is oxidized]

<em>No Cl atoms are available</em> to be oxidized, only Cl^(-)ions

2Cl^(-) → Cl_2 + 2e^(-)

The substance that <em>loses electrons</em> is oxidized.

Remember <em>OIL</em> RIG (<em>O</em>xidation<em> I</em>s <em>L</em>oss of electrons) and

<em>LEO</em> the lion says GER (<em>L</em>oss of Electrons is <em>O</em>xidation).

3 0
3 years ago
Care needs to be taken when adding acid to base because
nikitadnepr [17]
<span>Mixing an acid and a base results in neutralization, but the results are potentially dangerous. No matter which acid or base is used, the resulting solution is water and varying types of salt. The process of neutralization often involves the substances heating up when they come together. If the solution heats up too much or too fast, a violent explosion or the creation of harmful or flammable gases is a possibility. This occurs when the chemicals are mixed too quickly, the acid and base are too strong or if there is no available salt to be made in the solution.</span>
3 0
3 years ago
what is the primary function of the cells that make up the majority of cells in the muscular system ​
ANTONII [103]

Answer:

The muscular system is composed of specialized cells called muscle fibers. Their predominant function is contractibility. Muscles, attached to bones or internal organs and blood vessels, are responsible for movement. Nearly all movement in the body is the result of muscle contraction.

5 0
3 years ago
Other questions:
  • The names of monatomic anions are formed by replacing the ending of the name of the element with
    5·1 answer
  • What forces create the bent triatomic shape of a water molecule
    6·1 answer
  • Calculate the width of the cheek cell in micrometers
    9·1 answer
  • Is the paramecium a prokaryote or a eukaryote
    7·1 answer
  • which of the following ions is formed when the positive hydrogen ions from an acid bond to water molecules? H- OH- H2O+ H3O+
    12·2 answers
  • 1. Even though the iceberg and the water that surrounds it are made up of the same
    9·2 answers
  • Need help with these (This is how i got the DOC)
    14·1 answer
  • Becquerel expected to find (an)____when he developed the photographic plate that had Sun-exposed minerals on top of it. Becquere
    11·2 answers
  • Each time the boy breathes, he exhales 0.5012 L of gas. How many moles of gas does he exhale?​
    11·1 answer
  • 80) Which one of the following should have the lowest boiling point? Group of answer choices HCl H2S PH3 H2O SiH4
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!